50566720380 has 144 divisors (see below), whose sum is σ = 162395476992. Its totient is φ = 11725577600.

The previous prime is 50566720283. The next prime is 50566720397. The reversal of 50566720380 is 8302766505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15565 + ... + 318395.

It is an arithmetic number, because the mean of its divisors is an integer number (1127746368).

Almost surely, 2^50566720380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50566720380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81197738496).

50566720380 is an abundant number, since it is smaller than the sum of its proper divisors (111828756612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50566720380 is a wasteful number, since it uses less digits than its factorization.

50566720380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302888 (or 302875 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 50566720380 in words is "fifty billion, five hundred sixty-six million, seven hundred twenty thousand, three hundred eighty".